Olubo or Lolubo is a Central Sudanic language spoken by 33,000 Olubo people in Southern Sudan.
Phonology Consonants +Consonants Labial Dental Alveolar Post-alveolar Retroflex Palatal Velar Labial-velar GlottalImplosive Plosive/Affricate voiceless voiced prenasalized Fricative voiceless voiced Approximant
Vowels Front Back+Vowels Close Near-close Close-mid Open-mid Open
Vowels form two vowel harmony sets, based on advanced and retracted tongue root. The [−ATR] group is commonly transcribed as , and the [+ATR] group as . is phonetically [−ATR] but is found in roots of both sets.
There is a tenth vowel quality , which only occurs after . When and are in separate morphemes, is in free variation with .
Tones Olubo has high , mid , and low tones.There are also six compound tones, low-mid , low-high , mid-low , mid-high , high-low , and high-mid .
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